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What are .dex files in Android?

...remarkable features of the Dalvik Virtual Machine (the workhorse under the Android system) is that it does not use Java bytecode. Instead, a homegrown format called DEX was introduced and not even the bytecode instructions are the same as Java bytecode instructions. Compiled Android application co...
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Unix - create path of folders and file

I know you can do mkdir to create a directory and touch to create a file, but is there no way to do both operations in one go? ...
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Can constructors throw exceptions in Java?

...structor ought to be careful to avoid acquiring unmanaged resources (file handles etc) and then throwing an exception without releasing them. For example, if the constructor tries to open a FileInputStream and a FileOutputStream, and the first succeeds but the second fails, you should try to close t...
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When 1 px border is added to div, Div size increases, Don't want to do that

...d), under the html->layout tab. Just as an example, a div with a width and height of 10px and a border of 1px, will have an outer width and height of 12px. For your case, to make it appear like the border is on the "inside" of the div, in your selected CSS class, you can reduce the width and he...
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ArrayBuffer to base64 encoded string

...edited Sep 29 '14 at 16:11 herbrandson 2,07722 gold badges3030 silver badges4343 bronze badges answered Feb 27 '12 at 1:29 ...
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Update value of a nested dictionary of varying depth

...ight general idea, i.e. a recursive solution, but somewhat peculiar coding and at least one bug. I'd recommend, instead: Python 2: import collections def update(d, u): for k, v in u.iteritems(): if isinstance(v, collections.Mapping): d[k] = update(d.get(k, {}), v) ...
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(413) Request Entity Too Large | uploadReadAheadSize

...ystem with IIS 7.5. One of the service methods has an 'object' as argument and I'm trying to send a byte[] which contains a picture. As long as the file size of this picture is less then approx. 48KB, all goes well. But if I'm trying to upload a larger picture, the WCF service returns an error: (41...
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Extract a substring according to a pattern

...we create a data frame with two columns, one for the part before the colon and one for after, and then extract the latter. library(dplyr) library(tidyr) library(purrr) DF <- data.frame(string) DF %>% separate(string, into = c("pre", "post")) %>% pull("post") ## [1] "E001" "E002" "E00...
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How to stop C++ console application from exiting immediately?

...n one of the code samples, I see that program open for about a half second and then immediately close. Is there a way to stop the program from closing immediately so that I can see the fruits of my effort? ...
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Offset a background image from the right using CSS

... It works now on mobile devices (checked on Android, iOS and WindowsPhone). Still Safari 5.1.7 not support background position given like here. – Szorstki Apr 15 '14 at 13:33 ...